diff --git a/patterns/relate/models.py b/patterns/relate/models.py
index 01574674..b4e6aeb3 100644
--- a/patterns/relate/models.py
+++ b/patterns/relate/models.py
@@ -149,10 +149,17 @@ def right_dict(self):
             }
         return cache[key]
 
+    def _reset_dict_cache(self):
+        for cls in Relationship, InverseRelationship:
+            key = cls._cache_prefix + str(self.pk)
+            if key in cls._dict_cache:
+                del cls._dict_cache[key]
+
     def save(self, *args, **kwargs):
         rightct = self.reltype.right
         self.right = rightct.get_object_for_this_type(pk=self.right_object_id)
         super(Relationship, self).save(*args, **kwargs)
+        self._reset_dict_cache()
 
     def __str__(self):
         if (self.from_content_type_id and self.type_id